Duda, who missed most of the season with a stress fracture in his lower back, made an abbreviated start at first base Saturday, but then incurred stiffness.

“He’s feeling a lot better today — he said he’s feeling better in the batting cage — and he’s getting more swings here than he had in Florida,” Collins said. “So we’re getting close to sending him out there again and see how he handles it.”

Asdrubal Cabrera and Jose Reyes spoke to Yoenis Cespedes on Wednesday after the outfielder didn’t hustle from the batter’s box on a ball he thought had cleared the fence. Cespedes ended up with a double instead of a triple on the play. A team source said Cespedes was embarrassed by the situation.

The Mets used 27 players, setting a franchise record for the highest total in an extra-inning game. Previously, the Mets had used 26 players against the Cubs over 11 innings on Sept. 13, 2011.

They also used 10 pitchers, tying a club record. In a nine-inning game against the Phillies on Sept 20, 2012, the Mets also used 10 pitchers.

T.J. Rivera was in the cleanup spot because Collins wanted a righty bat that could offer protection for Cespedes.

Rivera went 1-for-5 with three strikeouts, but has a seven-game hitting streak in which he’s batting .380.

“[Rivera] has got to go through the league a couple of times,” Collins said. “They have got to see him, they have got to get a better idea how other teams are getting him out.”

“Today when we wrote the lineup we were messing around with some different scenarios. The one thing we knew against a left-handed pitcher, we’ve got to protect Yoenis Cespedes. Somebody has got to hit behind him that they can’t pitch around him.”